At a glance
Airport Plaza is a 42,000-square-foot office building at 5933 NE WIN SIVERS DR in Portland, Oregon, built in 1998. In its 2024 Portland benchmarking disclosure it reported an ENERGY STAR score of 39 out of 100 (grade D), a site energy-use intensity of 56.4 kBtu/ft² and 359 tCO₂e of greenhouse-gas emissions. That score is higher than 7% of the 256 scored office buildings in Portland.
Commercial Building Energy Performance Reporting Policy · reporting year 2024
Benchmarking record
| Field | Value |
|---|---|
| ENERGY STAR score | 39 (band D) |
| Site EUI | 56.4 kBtu/ft² |
| Source EUI | — |
| GHG emissions | 359 tCO₂e |
| GHG intensity | — |
| Electricity | 652,434 kWh |
| Natural gas | 1,413 therms |
| Gross floor area | 42,000 sq ft |
| Source record | portland_or:1N2E15DA-1300-B1:2024 |
The disclosure history
Year over year
| Year | Score | Δ | Site EUI | GHG emissions |
|---|---|---|---|---|
| 2024latest | 39 | 56.4 kBtu/ft² | 359 tCO₂e | |
| 2023 | — | — | — |
Compliance context
Commercial Building Energy Performance Reporting Policy
Portland requires commercial buildings over 20,000 sq ft to report energy performance annually, with civil penalties for buildings that fail to comply.
Ownership
No owning organisation shown. Names of private individuals in the disclosure are not published here.
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Location
- Address
- 5933 NE WIN SIVERS DR
- City
- Portland
- State
- Oregon
Within ~1 km
Nearby benchmarked buildings
This source publishes no coordinates, so nearby buildings can't be resolved yet.
See also: most efficient in Portland · biggest emitters
How does Airport Plaza compare with other office buildings in Portland?
The latest disclosures cover 335 office buildings in Portland, out of 952 buildings citywide. Airport Plaza's ENERGY STAR score of 39 compares with an average of 76 across the 256 that report a score; it scores higher than 7% of them and lower than 91%. Its site EUI of 56.4 kBtu/ft² is about 18% above the average of 47.6 kBtu/ft² — it uses more energy per square foot than the typical building in that group.
At 42,000 sq ft, it is about 58% below the average floor area of 100,908 sq ft for those buildings. It was built in 1998, 41 years later than the group's average year built (1957). Across all 24 jurisdictions BuildingCensus covers, the 15,264 office buildings average an ENERGY STAR score of 73 and a site EUI of 59.3 kBtu/ft².
How has Airport Plaza's energy performance changed over time?
BuildingCensus holds 2 Portland disclosures for Airport Plaza, covering report years 2023–2024. Only one of those years carries energy figures.
What does an ENERGY STAR score of 39 mean?
ENERGY STAR scores run from 1 to 100 and are computed by the EPA's Portfolio Manager as a percentile against similar buildings nationwide, adjusted for climate, size and use: a score of 39 means the building performs better than about 39% of its national peers. BuildingCensus bands the score into report-card grades; 39 falls in band D — lowest band (1–54). It sits 36 points below 75, the threshold for ENERGY STAR certification. In Portland, 66% of scored buildings are at 75 or above.
Site energy-use intensity (EUI) is the energy a building uses on site in a year divided by its floor area, in thousand Btu per square foot — lower is more efficient. Airport Plaza's 56.4 kBtu/ft² across 42,000 sq ft works out to about 2.4 billion Btu (694 MWh-equivalent) in 2024. The disclosure also reports 652,434 kWh of electricity and 1,413 therms of natural gas for the year.
Which law requires Airport Plaza to report its energy use?
Airport Plaza reports under the Commercial Building Energy Performance Reporting Policy, the legal basis of Portland's Commercial Building Energy Reporting program, which publishes each covered building's annual benchmarking results. The record shown here is the report-year 2024 disclosure (source record portland_or:1N2E15DA-1300-B1:2024). Portland requires commercial buildings over 20,000 sq ft to report energy performance annually, with civil penalties for buildings that fail to comply.
More office buildings in Portland
- Graphic Arts Building· 41,842 sq ft · EUI 63.7 kBtu/ft²
- George Lawrence Building· 41,465 sq ft · score 79 (B)
- OHSU Marquam Plaza· 41,211 sq ft · score 10 (D)
- Trimet LIFT Office· 41,024 sq ft · score 58 (C)
- Systems Administrative Office· 40,800 sq ft · score 100 (A)
- The Marine Building· 40,586 sq ft · score 97 (A)
- Office buildings in Portland· 335 benchmarked
- All Portland benchmarked buildings· Commercial Building Energy Performance Reporting Policy
- Most efficient large buildings in Portland
- Least efficient large buildings in Portland
- Biggest emitters in Portland
Frequently asked questions
What is Airport Plaza's energy grade?
Airport Plaza scores 39 out of 100 on ENERGY STAR — band D, lowest band (1–54) — in its 2024 Portland disclosure. Scores are national percentiles against similar buildings; 75+ qualifies for ENERGY STAR certification.
How much energy does Airport Plaza use?
Its 2024 site energy-use intensity was 56.4 kBtu/ft² across 42,000 sq ft, including 652,434 kWh of electricity and 1,413 therms of natural gas.
What are Airport Plaza's carbon emissions?
Airport Plaza reported 359 tCO₂e of greenhouse-gas emissions for 2024.
Where is Airport Plaza?
Airport Plaza is at 5933 NE WIN SIVERS DR, in Portland, Oregon.
How big is Airport Plaza and when was it built?
Airport Plaza has 42,000 sq ft of gross floor area, as reported in its 2024 disclosure. The disclosure lists 1998 as its year built. It is classed as office.
Is Airport Plaza covered by the Commercial Building Energy Performance Reporting Policy?
Yes — it appears in the 2024 Commercial Building Energy Reporting disclosure, which lists the buildings reporting under the Commercial Building Energy Performance Reporting Policy.
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About this data
Source: Commercial Building Energy Reporting (Commercial Building Energy Performance Reporting Policy), as published July 9, 2026. See the methodology for how records are matched, cleaned and scored.
Cite as: BuildingCensus, “Airport Plaza, Portland, Oregon — 2024 benchmarking disclosure”, https://buildingcensus.com/buildings/portland/airport-plaza-8e6aae32 (data as of July 9, 2026).